Guide and stop mechanism for window sashes or the like



Dec. 19, 1933. J, FREYSINGER GUIDE AND STOP MECHANISM FOR WINDOW SASHESOR THE LIKE Filed Jan. 19, 1935 NEY.

Patented Dec. 19, 1933 PATENT oFFIcE 4 GUIDE AND STOP MECHANISM FOR`WINDOW SASHES OR THE LIKE Johann Freysinger, Lake Waccabuc, Y.Application January 19, 1933. Serial No.6572,443

6 Claims.

elevated'positions as is ordinarily desirable great- 1y facilitated andrendered eective.

f Another object of this invention is to provide a construction whichwill be comparatively simple, durable and efficient in operation.

A still further object is to so construct such mechanism that when usedon wooden structures binding between `the sliding andthe stationarysurfaces will be eliminated. Y

And still another object is to provide a guide and holding mechanismwhich can be readily applied to existing structures without materialchanges therein.

With these and other objects in View which will become clear from thedetailed description of my invention, the latter consists in the novelconstruction, combination and arrangement of parts as hereinafter morefully specied and defined in the appended claims.

In the accompanying drawing in which similar `reference charactersdenote corresponding parts and which constitutes a part of Vthisspecification;

Fig. 1 is an elevation of a'conventional window equipped with my newguide and holding mechanism; g

Fig. 2 is a cross section on line 2--2 of Fig. 1 showing one of thesashes in locked position;

Fig. 3 is a similar section showing the same sash unlocked;

Fig. 4 is a longitudinal section on line 1 -4 of Fig. 2, seen in thedirection of the arrows;

Fig. 5 is a longitudinal section on line 5*-5 of Fig. 4, seen in thedirection of the arrows; and

Fig. 6 is a plan View of a detail.

Referring to the drawing 10 denotes a conventional window havingvertically movable sashes 11 and the window frame 12. The side bars oithe window sashes 11 are each provided adjacent their outer edges with avertical series of grooves or pockets 13, which may be spaced atsuitable distances apart and which serve as sockets to bear balls 14 orthe like. The sockets 13 are open at their outer sides and are soadmeasured that the balls can be readily passed into them through saidopen sides, will rotatably bear therein and partly project outwardlythrough said open sides. Fixed to said outer sides of said sashes in anysuitable manner and extending over the entire length thereof are strips15 of sheet metal which opposite said ballsle have recesses, such ascircular perorations 16, so admeasured as to permit said balls to alsoproject therethrough and to hold them in position within said sockets.If 6 the sashes are made of Woodrthen metal plates 17 maybe mounted insaid sockets to serve as backers to take up the pressure on said ballswhen thewindow sash is being raised` or lowered, as will be hereinafterdescribed, and to thereby prevent said balls from becoming embedded inthe Wood;

Provided in the grooves 18 of the frame are guide bars 19 extending theentire length thereof. These bars are suitably attached to resilient ameans, which are fixedv to the innerwalls of said grooves. In thepresent embodiment of my invention these resilient means are in form ofplate springs 20 Vfixed at one end, as at 21, to the walls of thegrooves and recessed at the opposite Vend 22 to engage headed pins 23projecting from the rear faces of the bars. These resilient .supportsVwill hold the` bars'normally in a laterally projecting position but onthe exertion of some lat--V eral pressure permit the bars to yieldinwardly relative to said grooves 18. Each bar is provided aboutcentrally with agroovel 24 extending substantially the entire lengththereof and which is so admeasured in width and depth as to engage theprojecting parts of the balls 14 and permit them to freely roll therein.At certain intervals each groove is constricted as at 25 so as to formobstructions to the balls.

According to present embodiment of the invention each constriction isformed by two opposite pairs of circulariy curved aps 26 projecting fromth side edges of the grooves 24, there being one pair on eachrside ofsaid latter, the curved flaps of each pair being adjacent to oneanother, so that the space 27 between said two pairs of curved flaps 26in width. is the sameas groove 24 and forms a nest for a ball 14.

The curved edges of the flaps 26 in cooperation with the balls 14 areadapted to act as cams, so that the balls 14;, during the raising orlowering of the sash arriving at the outer ends of the flaps 26 andobstructed thereby will upon forcingthe sash further upwardly ordownwardly be caused to roll over said carri edges and at the same timedepress the bars 19 against the tension of their spring supports 20.After rolling over the crests of said aps 26 the balls 14 will graduallypass or snap into the nests 27 and as a result thereof lock the sash inthe raised or lowered position, as the case may be. To continue themovement of the sash in the same direction orto move it into theopposite direction a relatively small force will be required to dislodgethe balls from their nests 27 over the crests of the flaps 26.

By reason ofthe balls 14 freely rolling in the grooves 24 the sashes canbe moved smoothly up and down. Every time the balls 14 arrive at theconstricted parts of the groove there will be a tendency for the sash tostop and will require but a slight force to overcome that tendency byforcing the balls to roll over the cams 26 and depressing the guide bars19. If it is desired to leave the window sash in an open position theWindow sash will be moved until its balls 14 snap into nests 27corresponding to the position desired.

In order to provide for as many nests as desirable to permit asufficient number of stops at which the sashes may be held in suspensionit may be advantageous in order to avoid crowding, to arrange thesockets and balls in the sash, as Well as the constrictions 25 of thegrooves 24 in the frame at the two opposite sides of the window in adisplaced position relative to one another, as is indicated in Fig. l.

When the window frame is made of wood it may be advantageous, in orderto prevent binding between the bars and the side walls of theguidegrooves, to provide sheet metal sheaths 28 suitably attached to andcovering the inner faces of the walls of said guide grooves (Figs. 2, 3and 4) so that the bar 19 will when yielding be guided in said sheaths.

It is, of course, understood that various other changes may be made inthe construction of my 'device without departing from the principle ofmy invention. I, therefore, do not wish to restrict myself to thedetails shown and described.

What I claim is:-

1. In a window having vertically movable sashes and a frame, a verticalrow of elements rotatively borne in each side of a sash and projectinglaterally therefrom, laterally movable spring actuated members extendingthroughout the length of each side of the frame, each member beinggrooved in its front face longitudinally Y to freely engage theprojecting parts of said elements, the groove on each member being atintervals constricted in width to form obstructions to the said elementswhereby said members will be caused to yield laterally to permit thepassage of said elements therein.

2. 1n a window as per claim 1, in which the sashes in their sides areformed with sockets to bear said rotatable elements.

3. In a window as per claim 1, in whichvthe laterally movable memberscomprise at bars and spring supports therefor mounted in the guidegrooves of said frame. 1 A

4. In a window as per claim 1, in which the laterally movable memberscomprise bars the front faces of which are flat and have longitudinalgrooves. l

5. In a window as per claim 1, in which the constricted parts are inform of cani shaped flaps.

6. In a window as per claim 1, in which each laterally movable memberhas a longitudinal groove formed at intervals with opposite pairs of camshaped flaps projecting from the edges of said groove, the space betweeneach pair of flaps being about as Wide as the general width of saidgroove to form a nest for one of said rotatable elements and retain theWindow sash in its raised or lowered position.

JOHANN FREYSINGER.

